MRI compatible handle and steerable sheath

a technology of mri and handle, which is applied in the direction of catheters, instruments, and measurements using nmr, can solve the problems of high current density in the tissue, high safety risks for patients, and associated joule or ohmic tissue heating

a technology of mri and handle, which is applied in the direction of catheters, instruments, and measurements using nmr, can solve the problems of high current density in the tissue, high safety risks for patients, and associated joule or ohmic tissue heating

US20140135745A1Inactive Publication Date: 2014-05-15IMRICOR MEDICAL SYST
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  • MRI compatible handle and steerable sheath
  • MRI compatible handle and steerable sheath
  • MRI compatible handle and steerable sheath

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Embodiment Construction

[0027]Numerous structural variations of an MR compatible steerable sheath and control handle in accordance with the invention are contemplated and within the intended scope of the invention. Those of skill in the art will appreciate that the exemplary control handle may be coupled to other types of steerable sheaths. In addition, those of skill in the art will appreciate that the exemplary steerable sheath may be couple with other control handles. Therefore, for purposes of discussion and not limitation, an exemplary embodiment of the MR compatible steerable sheath and control handle will be described in detail below.

[0028]Referring now to FIG. 1, the control handle 10 in accordance with the invention includes a cover 2 as illustrated in FIG. 1. Cover 2 includes distal portion 12, hand-graspable middle region 14, and proximal end 16. Distal portion 12 includes aperture 18 through which steerable sheath 100 exits. Proximal end 16 includes rotatable adjustment knob 20 and port 22. Rot...

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Abstract

An MR compatible deflectable catheter and method of using the same is provided. The MR compatible deflectable catheter includes a steerable sheath having a tubular shaft. The tubular shaft receives first and second longitudinal movement wires at a distal end thereof. A control handle is coupled to a proximal end of the first and second longitudinal movement wires and causes longitudinal movement of the wires.

Description

FIELD OF THE INVENTION[0001]This invention relates to deflectable medical catheters, namely steerable sheaths used in interventional vascular procedures to deliver tools (e.g. electrophysiology catheters, guidewires, balloons catheters, stents, instruments, etc.) into the human body and handles for operating the steerable sheath. More particularly, the present invention is related to a family of sheaths that is safe for use in the magnetic resonance environment and handles for operating the sheaths, as the materials used in the invention are compatible with strong electromagnetic fields.BACKGROUND OF THE INVENTION[0002]MRI has achieved prominence as a diagnostic imaging modality, and increasingly as an interventional imaging modality. The primary benefits of MRI over other imaging modalities, such as X-ray, include superior soft tissue imaging and avoiding patient exposure to ionizing radiation produced by X-rays. MRI's superior soft tissue imaging capabilities have offered great cl...

Claims

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Application Information

Patent Timeline
15 May 2014
Publication
US20140135745A1
IPC
A61M25/01
CPC
A61M25/01; A61M25/0147; A61M25/0052; A61M25/0054; A61M25/0108; G01R33/286; A61M25/0127; A61M25/0136
Inventors
STENZEL, GREGG S.; WEDAN, STEVEN R.